How much does an energy performance certificate cost in Luxembourg in 2026?
By Yacine Sahnoune, founder of renov.lu
In Luxembourg, the price of an energy performance certificate (CPE or Energiepass) is unregulated: allow about €500 to €600 including VAT for a house, for example €499 up to 250 m² and €599 from 251 to 500 m² in an approved expert’s public price list. Through renov.lu, an approved partner expert issues it from €475 for a house. For an apartment building, the certificate covers the whole building: from €599 + €50 per unit. It is charged with 17% VAT and receives no grant.
- House up to 250 m²: €499 incl. VAT in an approved expert’s public price list
- House of 251 to 500 m²: €599 incl. VAT in the same list
- Flat: certificate for the whole building, from €599 + €50 per unit
- Through renov.lu: from €475 for a house with an approved partner expert, a negotiated rate the expert confirms on the first call
- VAT: 17%; the certificate is not covered by the 3% housing VAT rate
- Grant: none; the certificate is not subsidised, even in a Klimabonus application
- Who pays: the seller, the landlord or the client building the property
Your certificate at the negotiated rate of €475
An approved expert working with renov.lu calls you back within 24 hours. House: €475. Apartment building: quotation based on the number of units.
Energy performance certificate price for a house
For a single-family house, a certificate costs about €500 to €600 including VAT in Luxembourg. The State sets no fee: each architect, consulting engineer or approved expert sets their own. The main price driver is floor area, because it lengthens the visit and the calculation.
| House floor area | Approved expert’s public price list (incl. VAT) | Through renov.lu |
|---|---|---|
| Up to 250 m² | €499 | €475 |
| 251 to 500 m² | €599 | €475 |
| Over 500 m² | On quotation | On quotation |
The €499 / €599 list is the one publicly displayed by an approved expert (Certinergie, undated list, checked by renov.lu in September 2026). The €475 rate is negotiated by renov.lu with its partner expert. Other experts charge similar amounts; only the expert’s written quote is binding.
Price for a flat or apartment building
For a flat, the certificate you must provide is the one for the whole building: its price depends on the number of units. The public price list quoted above starts at €599 + €50 per unit. A certificate for a single flat is only possible as a supplement to the building’s certificate and does not replace it.
| Building | Price of the building’s certificate (incl. VAT) | Share per unit if the bill is split equally |
|---|---|---|
| 4 units | from €799 | about €200 |
| 8 units | from €999 | about €125 |
| 12 units | from €1,199 | about €100 |
renov.lu calculation: €599 + €50 × number of units, the floor price of a public list. Through renov.lu, a building certificate is issued on quotation. Before ordering, ask the building manager (syndic) whether the building already has a certificate under 10 years old: if so, you pay nothing.
Three worked examples
Selling a 160 m² house built in 1972
The seller orders the certificate: €499 incl. VAT on the public list, or €475 through renov.lu. The certificate remains valid for 10 years: if the buyer resells or lets within that period, they reuse it at no cost.
Letting a flat in an 8-unit building with no certificate
The building’s certificate costs from €999. If the general meeting decides to order it for everyone and split the bill equally, each unit pays about €125; otherwise the landlord who needs it pays the full amount upfront.
Renovating facade and roof with the Klimabonus
You need a certificate before works (with the application for approval in principle) and one after works (with the payment claim): about €1,000 for a house (2 × €499), not subsidised. They are what proves the class bonus, up to +50% on the insulation grant.
What makes the price of a certificate vary
The price of an energy performance certificate varies mainly with the size of the building and the survey time on site. Six factors explain most of the gap between two quotes:
- Floor area: in the public list quoted, the price rises from €499 to €599 above 250 m².
- Building type: an apartment building is priced by number of units, because the certificate covers all common and private parts.
- Available documents: without plans or a record of past works, the expert surveys everything on site, which lengthens the visit.
- Technical complexity: several heating systems, an extension or split levels require more calculation.
- Urgency: a fast appointment and delivery may cost more with some experts.
- Travel: included in most flat fees, charged separately by others. Ask.
VAT: 17%, not 3%
The certificate is a service charged at the standard VAT rate of 17%. The super-reduced 3% rate (housing VAT) only applies to building or renovation works, and the official list explicitly excludes architects’ and engineers’ fees.
- €499 including VAT equals €426.50 excluding VAT.
- A quote of €450 excluding VAT comes to €526.50 including VAT.
Always compare quotes including VAT. For the works that follow the certificate, the 3% rules are set out on our page 3% VAT on renovation.
Grants: why the certificate is not subsidised
No public grant covers the energy performance certificate in Luxembourg: whoever orders it pays for it, even when it is used for a Klimabonus application. Yet the Klimabonus requires a certificate before and after insulation, window or ventilation works, and that pair of certificates triggers the class bonus (+20% for insulation class C, +30% for B, +50% for A or A+, with a gain of at least two classes).
Do not confuse the certificate with the energy advice of an approved advisor, which is subsidised: €1,700 for a house, €2,000 if the application for approval in principle is filed between 1 January 2026 and 30 June 2027 (energy advice and audit). Klima-Agence’s basic advice is free (8002 11 90). All grant amounts are on our page Klimabonus energy renovation grants.
Who pays for the energy performance certificate?
The certificate is paid for by whoever must provide it: the seller for a sale, the landlord for a letting, the client for a new build or an extension (Article 14 of the regulation of 9 June 2021). The buyer and the tenant pay nothing. In a co-owned building, the co-owners can order a joint certificate and share the cost if the general meeting so decides. Handover and listing duties are set out in energy certificate obligations when selling or letting.
Comparing two certificate quotes: 5 points to check
The price including VAT and what it covers
Visit, calculation, certificate, travel. A price shown excluding VAT rises by 17% once VAT is added.
The expert’s status
OAI member or approved by the Minister of the Economy: check the name on the official list published on guichet.lu.
The scope
For a flat, the quote must cover the whole building. A certificate « for the unit only » is not enough to sell or let.
Appointment and delivery time
No deadline is set by law: have the visit date and delivery time put in writing if a sale is under way.
Handover of the original
On a sale, the original goes to the buyer. Make sure you receive an original, not just a file.
The next steps are described in getting an energy performance certificate: documents, visit, timelines, and how the certificate works in general in our energy performance certificate guide.
The renov.lu rate: from €475 for a house
Tell us the reason (sale, letting, renovation) and the property type: an approved expert working with renov.lu calls you back within 24 hours to book the visit. House: €475. Flat or apartment building: quotation based on the number of units. Free request, no obligation.
Request your energy certificate online
Two-step form, approved expert, certificate valid for 10 years.
Frequently asked questions about energy certificate costs
Why does the price of an energy certificate vary from one expert to another?
Because no fee is regulated in Luxembourg: each architect, consulting engineer or approved expert sets their own. Differences mainly come from floor area, number of units, available documents, urgency and travel. For a house, most offers fall between €500 and €600 including VAT.
How much does the energy certificate for a flat I want to let cost?
The certificate required is the one for the whole building. An approved expert’s public price list starts at €599 + €50 per unit, about €999 for 8 units. If the building already has a certificate under 10 years old, you pay nothing; otherwise the bill can be shared among co-owners if the general meeting so decides.
Is there a state grant to pay for the energy certificate?
No. No public grant covers the certificate, neither the Klimabonus nor any other national scheme. Only the energy advice of an approved advisor is subsidised (€1,700 for a house, €2,000 for an application for approval in principle filed from 1 January 2026 to 30 June 2027), and Klima-Agence’s basic advice is free.
Does the price of a certificate include VAT?
It depends on the expert: some show prices excluding VAT, others including it. The certificate is charged at the standard 17% rate, because architects’ and engineers’ fees are excluded from the 3% rate. A quote of €450 excluding VAT therefore comes to €526.50 including VAT: always compare amounts including VAT.
Do I have to pay for two certificates for a Klimabonus application?
Yes, for insulation, windows or ventilation: a pre-works certificate goes with the application for approval in principle and a post-works certificate with the payment claim. For a house, allow about €1,000 for both, not subsidised. These two certificates also prove the class bonus, which raises the insulation grant by 20 to 50%.
Is a cheaper energy certificate less reliable?
Not in itself: the calculation method is set by the Grand-Ducal Regulation of 9 June 2021 and binds every expert. What matters is the expert’s status (OAI member or approved by the Minister of the Economy) and the accuracy of the survey. A low price that excludes travel or covers a single flat instead of the building can, however, end up costing more.